Sanchez moved to Old Trafford from Arsenal back in January and had been tipped to make a strong start to the new Premier League campaign after a promising pre-season.
The Chilean star started United’s opener against Leicester City on August 10th, but was forced to miss their game against Brighton on Sunday after picking up a knock in training.
Mourinho must have lamented the loss of his dynamic winger as he watched his team fall to a disappointing 3-2 defeat, which leaves the club already trailing last season’s champions Manchester City by three points in the table.
The Portuguese boss gave his opinion on Sanchez’ injury following the disappointing loss.
Mourinho told BBC Sport: “I don’t know really. Let’s wait for the results of the studies, but I don’t think it’s a big thing. I think it will be one or two weeks maximum.”
The Red Devil’s performance against Chris Hughton’s hard-working and well organised outfit was quite simply well below the standard expected at Manchester United and with Tottenham up next they will have to improve quickly.
Mourinho also gave his frank assessment of the game, stating that Brighton ‘punished’ his team for defensive errors.
“Obviously I wasn’t expecting big mistakes because we’re not speaking about small mistakes – we made big mistakes and we were punished by these big mistakes.” said the United boss.
“Of course, when you lose your confidence, there is a normal tendency to lose a little bit the direction of the game plan.”
Glen Murray, Shane Duffy and Pascal Gross scored the goals for the home side, while Romelu Lukaku and Paul Pogba managed to grab consolation strikes for the visitors.
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